(Autonomous Robot Control Software)
Make robots with the easiest robot programming software. Experience user-friendly features that make any robot easy to program.
Change Release Notes
This is a small release with one new feature for the camera control
- new Camera Variable: $IsCameraActive which returns the status of the camera. Can be configured to a custom variable name in the camera config dialog
ARC Downloads
ARC
FREE
$0
always free
- 1 third-party plugin skill per project
- Trial cloud services
- Personal, DIY & education use
- Updated every 6–12 months
Recommended
ARC
PRO
$8.99
per month
- Use on 2+ PCs simultaneously
- Unlimited robot skills
- Cloud backup & revision history
- Weekly features & bug fixes
- Business use permitted
ARC
RUNTIME
$0
always free
- Load & run any ARC project
- Read-only mode
- Unlimited robot skills
- Includes early access fixes & features
- Minimum requirements: Windows 10 or higher, 2 GB RAM, 500 MB free disk space.
- Recommended: Windows 10 or higher, 8 GB RAM, 1 GB free disk space.
- Prices are in USD.
- ARC Free known issues: view here.
- More about each edition: Download & install guide.
- Latest changes: Release notes.
Compare Editions
| Feature |
ARC
FREE
|
ARC
PRO
|
|---|---|---|
| Get ARC Free | View Plans | |
| Usage | Personal · DIY · Education | Personal · DIY · Education · Business |
| Early access to new features & fixes | — | ✓ |
| Simultaneous microcontroller connections * | 1 | 255 |
| Robot skills * | 20 | Unlimited |
| Skill Store plugins * | 1 | Unlimited |
| Cognitive services usage ** | 10 / day | 6,000 / day |
| Auto-positions gait actions * | 40 | Unlimited |
| Speech recognition phrases * | 10 | Unlimited |
| Camera devices * | 1 | Unlimited |
| Vision resolution | max 320×240 | Unlimited |
| Interface builder * | 2 | Unlimited |
| Cloud project size | — | 128 MB |
| Cloud project revision history | — | ✓ |
| Create Exosphere requests | — | 50 / month |
| Exosphere API access | — | Contact Us |
| Volume license discounts | — | Contact Us |
| Get ARC Free | View Plans |
* Per robot project
** 1,000 per cognitive type: vision recognition, speech recognition, face detection, sentiment, text recognition, emotion detection, azure text to speech
Upgrade to ARC Pro
Your robot can be more than a simple automated machine with the power of ARC Pro!

Hi DJ. Its awesome to see the updates rolling out, I know you and your team have been busy.
This is very useful. I had a camerastart ControlCommand in my init script, and if the camera was already running, it would crash ARC (no errors in the debug log).
Now I have an IF statement to see if the camera is already running, and no more issues.
Alan
please dont foreget about the the virtual ports to match the digital ports
Sorry just downloaded ,, thought i had it ,, Thank you @DJ Sures for the update I have been waiting for this so i can continue and once again you come through!
Thanks again.
Hmm.... Actually, $IsCameraActive is only initialized once the camera has been started at least once. So if I have just opened the project, and haven't started the camera yet, I get an error in the log "Variable Not Defined $isCameraActive".
If I have started the camera at least once, then the IF statement to check if it is active or not works.
Also, you said:
I don't see anywhere to do that.
Alan
@Alan... Can you set it to 0 in an init logon script? That way you won't get variable not defined error...
I tried (actually, since the whole issue is I am trying to see if the camera is on or off, and 0 is off, I set it to 2 then had the IF statement looking for != 1) but I guess since the IF statement is also in the Init script, it is still seeing it as undefined. I guess I need to create another script, and call it with control command.
I'll figure it out....
Alan
Calling the script that checks to see if the camera after setting the IsCameraActive variable to 2 eliminates the undefined variable error, but if the camera is active, when the init script runs, it sets the variable to 2, and then the script causes the nasty error that sometimes crashes ARC when I run the ControlCommand to start the camera.
This is the error: 11/17/2014 6:07 PM - Camera Initialized: EZB://192.168.1.105 @ 320x240 11/17/2014 6:07 PM - Camera Initialized: EZB://192.168.1.105 @ 320x240 11/17/2014 6:07 PM - EZ-B v4 Camera Error: System.IO.IOException: Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall. ---> System.Net.Sockets.SocketException: A blocking operation was interrupted by a call to WSACancelBlockingCall at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at EZ_B.EZBv4Video.() 11/17/2014 6:07 PM - Camera Disabled 11/17/2014 6:07 PM - Camera Disabled
Usually crashes ARC without the error getting written, but this last time it just threw the error without crashing.
Alan